upper fin的例句大全

homocercal type of caudal fin in teleosts where the upper and lower lobes are symmetrical?

正尾的在上、下叶是对称的硬骨鱼尾鳍类型；

steller's goldfish once came, it was classified as varieties upper. we all know, the balance of dorsal fin in fish organs, nature does not.

虎头金鱼一经问世，就被列为上等品种。众所周知，背鳍是鱼类的平衡器官，自然界中没有。

lateral line scales the pored scales of the lateral line between the upper end of the gill opening and the base of the caudal fin.

侧线鳞片在鳃裂的上端与尾鳍基底之间的侧线的有细孔鳞片。

terminal lobe posterior upper lobe of the caudal fin of some cartilaginous fishes.

端叶一些软骨鱼类尾鳍的后部上叶。

To replace relief valve disc, hold the upper guide fin and unscrew the diaphragm pressure plate.

要更换安全阀阀瓣, 握住上部引导翼,旋下隔膜压力板上的螺丝.